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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
it's the bip39 standard - 12, 15, 18, 21, or 24 words.
The 18 words is in the standard, but I don't know how widely it's actually implemented. Trezor definitely has an 18-word recovery option though. I'd use the reference implementation to verify that the seed is legit, then you can go from there.
Also, this tool might also help if you want to try recovering on some other wallets: https://walletsrecovery.org/
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